Re: Field value - Pointers

[Rob Berendt <rob@xxxxxxxxx>]

In fact I ran the following program.  The divide by zero was 
to create a dump - can't DSPLY pointers.  And in the dump, both 
of the pointers have the same value.

FIIM       IF   E             DISK                 
D IDESC           DS                               
D  DESC8                         8A                
                                                   
D POINTER         S               *                
D POINTER2        S               *                
                                                   
D X               S              1P 0              
C                   READ      IIM                  
C     IDESC         DSPLY                          
C     DESC8         DSPLY                          
C                   EVAL      POINTER=%ADDR(IDESC) 
C                   EVAL      POINTER2=%ADDR(DESC8)
C                   EVAL      X=1/X                
C                   EVAL      *INLR=*ON            






Rob Berendt
04/17/2000 10:21 AM
To:     RPG400-L@midrange.com@Internet
cc:      
Fax to: 
Subject:        Re: Field value - Pointers  

Excellent response.  You're right.  It also shows that you understand what the 
pointer is doing.
Boils down to personal preference.



joep@beckeringh.myweb.nl on 04/14/2000 07:46:29 PM
Please respond to RPG400-L@midrange.com@Internet
To:     RPG400-L@midrange.com@Internet
cc:      
Fax to: 
Subject:        Re: Field value - Pointers

Rob,

Nothing wrong with pointers, but you don't need those for what you are
doing: good old data structures suffice for this.

Joep Beckeringh


----- Original Message -----
From: "Rob Berendt" <rob@dekko.com>
To: <RPG400-L@midrange.com>
Sent: Thursday, April 13, 2000 11:44 PM
Subject: Re: Field value - Pointers


> You're right.  I've sent my apologies.
>
> However, this pointer stuff is great.  I am writing a program and found
another use for it.  Check out:
>
>  * DDS only allows us to have 10 character field names.  Therefore
>  * we will print PRTMSG.  However we want the value of PRTMSG to
>  * always be the value of ExceptionId.
> D PrtMsgP         S               *   inz(%addr(ExceptionId))
> D PrtMsg          S                   like(ExceptionId) based(PrtMsgP)
>
>  * We want to print the first 70 characters of ObjectName.  Therefore
>  * we will print the field Objname which will always contain the first
>  * 70 characters of ObjectName.  No moves or substrings needed.
> D ObjnameP        S               *   inz(%addr(ObjectName))
> D Objname         S             70A   based(ObjnameP)


+---
| This is the RPG/400 Mailing List!
| To submit a new message, send your mail to RPG400-L@midrange.com.
| To subscribe to this list send email to RPG400-L-SUB@midrange.com.
| To unsubscribe from this list send email to RPG400-L-UNSUB@midrange.com.
| Questions should be directed to the list owner/operator: david@midrange.com
+---







<<< Document Link >>>
Replica ID   = 0x5256525:0x5c934f
Document ID  = 0xdaba975b:0x9fb113eb-0x852564b5:0x1283ea
View ID      = 0xda9ea32a:0x3ca20081-0x52568c2:0x427f0
<<< End >>>